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參數資料
| 型號： | LC75384NE-R |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| 封裝： | QIP-64 |
| 文件頁數： | 4/25頁 |
| 文件大小： | 213K |
| 代理商： | LC75384NE-R |
No.6169-12/25
LC75384NE-R, 75384NW
The external capacitors C1 and C2 used with the LC75384W form the structural element of the simulated inductor
implemented by the IC. This section present the equivalent circuit and the method for calculating the constants required
to obtain the desired center frequency.
(A) Simulated inductor equivalent circuit
C1
C2
R2
R1
R3
BOOST
CUT
R3
R4
Zo
R1 = 1 k
R2 = 68 k
R3 = 5.1 k
+
–
Zo: Impedance at resonance
(B) Calculation
Specifications: 1. Center frequency: F0 = 100 Hz
2. Q at maximum boost: Q+12dB = 0.9
1. Determine the sharpness, Q0, of the simulated inductor itself.
Q0 =
(R1 + R4) × Q
+12dB ≈ 1.5399
R1
2. Determine C1.
C1 = 1/2
πF
0R1Q0 ≠ 1 (F)
3. Determine C2.
C2 = Q0/2πF0R2 ≠ 0.036 (F)
Note: * See the equivalent circuit diagram for the tone control block on page 11 for details on the internal resistor.
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| LC75384NW | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| LC75386NE-R | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| LC75386NW | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| LC75386NE | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| LC7538JM | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO36 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LC75385NE-R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC75386NE | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Volume and Tone Control for Car Stereo Systems |
| LC75386NE-L | 制造商:SANYO Semiconductor Co Ltd 功能描述:2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP64 |
| LC75386NE-R | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:LC75386NE-R/LC75386NW |
| LC75386NE-R-E | 制造商:ON Semiconductor 功能描述: |
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